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Old 03-26-2020, 01:20 AM   #9 (permalink)
Oregonnovaguy
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Join Date: Sep 2007
Location: Southern Oregon
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Here is a test of long (one year) oil change. Also a good comparison of Rotella T6 against Delo 400 XSP. Spoiler: The Rotella won. In a previous test, Rotella T6 beat Mobile 1.

https://youtu.be/T-yt5a1cWd4
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2007.5 Silverado LTZ / Z-71, 4x4, Crew Cab SB, Silver Birch/ Ebony Leather, , 150k + miles, , etc. Gearbox Z, Air Lifts
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